Note 3 - Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

			June 30, 2015							December 31, 2014
	Useful		Gross					Net		Gross					Net
	Lives		Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	(Years)		Amount		Amortization			Amount		Amount		Amortization			Amount
Intangibles (amount in thousands)
Patent		8-18	$	512	$	(186	)	$	326	$	512	$	(168	)	$	344
Software		3		379		(358	)		21		375		(319	)		56
Customer relationships		12		3,370		(1,503	)		1,867		3,370		(1,335	)		2,035
Permit		10		545		(345	)		200		545		(318	)		227
Total			$	4,806	$	(2,392	)	$	2,414	$	4,802	$	(2,140	)	$	2,662